File System Performance Testing - Do I have the right file system options and the right file system

Code Optimization - Is the code that I am running properly done

Datbase Optimization - Am I being efficient in my queries? Am I being efficient about loading data? Am I using the right table layouts?

There are many pieces to this animal. Keep in mind that once you fix one thing you may break something else. There will come a point where you will determine the happy medium for what you are trying to do.

I don't do much with PHP, but I would look at your PHP configuration, HTTPd configuration, and network configuration. Those are the places that I would start.

File System Performance Testing - Do I have the right file system options and the right file system

Code Optimization - Is the code that I am running properly done

Datbase Optimization - Am I being efficient in my queries? Am I being efficient about loading data? Am I using the right table layouts?

There are many pieces to this animal. Keep in mind that once you fix one thing you may break something else. There will come a point where you will determine the happy medium for what you are trying to do.

I don't do much with PHP, but I would look at your PHP configuration, HTTPd configuration, and network configuration. Those are the places that I would start.

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Brilliant list of points! I would like to thank you for building that list for me.

I've been monitoring the working of different applications , LFD helps me identify which application or process uses more memory and what application is unusual.

I've done system load tests from online load testers and it turned out that most of it went fine with HTML pages, but pages that had PHP or any heavy content would usually go down after a certain amount of requests.

I need to learn how to optimize queries so that it takes lesser time to process. I'll also have to work on code optimization and i believe there are great tools available online for me.

Overall the factors that i need to do to maintain a stable server have been specified by you. Thank you